{-# OPTIONS -fno-implicit-prelude #-}
--- ---------------------------------------------------------------------------
--- $Id: Posix.hs,v 1.5 2002/03/26 10:44:32 simonmar Exp $
+-----------------------------------------------------------------------------
+-- |
+-- Module : GHC.Posix
+-- Copyright : (c) The University of Glasgow, 1992-2002
+-- License : see libraries/base/LICENSE
+--
+-- Maintainer : cvs-ghc@haskell.org
+-- Stability : internal
+-- Portability : non-portable
--
--- POSIX support layer for the standard libraries
+-- POSIX support layer for the standard libraries.
+-- This library is built on *every* platform, including Win32.
--
-- Non-posix compliant in order to support the following features:
-- * S_ISSOCK (no sockets in POSIX)
+--
+-----------------------------------------------------------------------------
module GHC.Posix where
#include "config.h"
import Control.Monad
+import System.Posix.Types
import Foreign
import Foreign.C
type CUtimbuf = ()
type CUtsname = ()
-type CDev = HTYPE_DEV_T
-type CIno = HTYPE_INO_T
-type CMode = HTYPE_MODE_T
-type COff = HTYPE_OFF_T
-type CPid = HTYPE_PID_T
-
-#ifdef mingw32_TARGET_OS
-type CSsize = HTYPE_SIZE_T
-#else
-type CGid = HTYPE_GID_T
-type CNlink = HTYPE_NLINK_T
-type CSsize = HTYPE_SSIZE_T
-type CUid = HTYPE_UID_T
-type CCc = HTYPE_CC_T
-type CSpeed = HTYPE_SPEED_T
-type CTcflag = HTYPE_TCFLAG_T
-#endif
-
-- ---------------------------------------------------------------------------
-- stat()-related stuff
| isStream = c_closesocket fd
| otherwise = c_close fd
-foreign import ccall unsafe "closesocket"
+foreign import stdcall unsafe "closesocket"
c_closesocket :: CInt -> IO CInt
#endif
+fdGetMode :: Int -> IO IOMode
+fdGetMode fd = do
+#ifdef mingw32_TARGET_OS
+ flags1 <- throwErrnoIfMinus1Retry "fdGetMode"
+ (c__setmode (fromIntegral fd) (fromIntegral o_WRONLY))
+ flags <- throwErrnoIfMinus1Retry "fdGetMode"
+ (c__setmode (fromIntegral fd) (fromIntegral flags1))
+#else
+ flags <- throwErrnoIfMinus1Retry "fdGetMode"
+ (c_fcntl_read (fromIntegral fd) const_f_getfl)
+#endif
+ let
+ wH = (flags .&. o_WRONLY) /= 0
+ aH = (flags .&. o_APPEND) /= 0
+ rwH = (flags .&. o_RDWR) /= 0
+
+ mode
+ | wH && aH = AppendMode
+ | wH = WriteMode
+ | rwH = ReadWriteMode
+ | otherwise = ReadMode
+
+ return mode
+
-- ---------------------------------------------------------------------------
-- Terminal-related stuff
throwErrnoIfMinus1Retry_ "tcSetAttr" $
c_tcsetattr (fromIntegral fd) options p_tios
c_sigprocmask const_sig_setmask p_old_sigset nullPtr
+ return ()
#else
-- bogus defns for win32
setCooked :: Int -> Bool -> IO ()
-setCooked fd cooked = return ()
+setCooked fd cooked = do
+ x <- set_console_buffering (fromIntegral fd) (if cooked then 1 else 0)
+ if (x /= 0)
+ then ioException (ioe_unk_error "setCooked" "failed to set buffering")
+ else return ()
+
+ioe_unk_error loc msg
+ = IOError Nothing OtherError loc msg Nothing
setEcho :: Int -> Bool -> IO ()
-setEcho fd on = return ()
+setEcho fd on = do
+ x <- set_console_echo (fromIntegral fd) (if on then 1 else 0)
+ if (x /= 0)
+ then ioException (ioe_unk_error "setEcho" "failed to set echoing")
+ else return ()
getEcho :: Int -> IO Bool
-getEcho fd = return False
+getEcho fd = do
+ r <- get_console_echo (fromIntegral fd)
+ if (r == (-1))
+ then ioException (ioe_unk_error "getEcho" "failed to get echoing")
+ else return (r == 1)
+
+foreign import ccall unsafe "consUtils.h set_console_buffering__"
+ set_console_buffering :: CInt -> CInt -> IO CInt
+
+foreign import ccall unsafe "consUtils.h set_console_echo__"
+ set_console_echo :: CInt -> CInt -> IO CInt
+
+foreign import ccall unsafe "consUtils.h get_console_echo__"
+ get_console_echo :: CInt -> IO CInt
#endif
foreign import ccall unsafe "fork"
c_fork :: IO CPid
+foreign import ccall unsafe "getpid"
+ c_getpid :: IO CPid
+
foreign import ccall unsafe "fpathconf"
c_fpathconf :: CInt -> CInt -> IO CLong
-foreign import ccall unsafe "__hscore_sigemptyset"
- c_sigemptyset :: Ptr CSigset -> IO ()
-
foreign import ccall unsafe "link"
c_link :: CString -> CString -> IO CInt
foreign import ccall unsafe "pipe"
c_pipe :: Ptr CInt -> IO CInt
-foreign import ccall unsafe "sigaddset"
+foreign import ccall unsafe "__hscore_sigemptyset"
+ c_sigemptyset :: Ptr CSigset -> IO CInt
+
+foreign import ccall unsafe "__hscore_sigaddset"
c_sigaddset :: Ptr CSigset -> CInt -> IO CInt
foreign import ccall unsafe "sigprocmask"
- c_sigprocmask :: CInt -> Ptr CSigset -> Ptr CSigset -> IO ()
+ c_sigprocmask :: CInt -> Ptr CSigset -> Ptr CSigset -> IO CInt
foreign import ccall unsafe "tcgetattr"
c_tcgetattr :: CInt -> Ptr CTermios -> IO CInt
foreign import ccall unsafe "waitpid"
c_waitpid :: CPid -> Ptr CInt -> CInt -> IO CPid
+#else
+foreign import ccall unsafe "_setmode"
+ c__setmode :: CInt -> CInt -> IO CInt
+
+-- /* Set "stdin" to have binary mode: */
+-- result = _setmode( _fileno( stdin ), _O_BINARY );
+-- if( result == -1 )
+-- perror( "Cannot set mode" );
+-- else
+-- printf( "'stdin' successfully changed to binary mode\n" );
#endif
-- POSIX flags only: